/* Pagine di accesso e codice di verifica (servite dal server prima del login) */
:root{--bg:#f4f2ee;--fg:#1a1916;--card:#fff;--card2:#f8f6f2;--mut:#77746b;--ac:#2563eb;--ac2:#0284c7;--bd:#e8e5dd;--wn:#c2410c;--sh:0 1px 2px rgba(28,25,18,.04),0 10px 30px rgba(28,25,18,.08)}
@media(prefers-color-scheme:dark){:root{--bg:#0f0f0d;--fg:#f1efe8;--card:#1a1916;--card2:#211f1c;--mut:#9c998e;--ac:#3b82f6;--ac2:#0ea5e9;--bd:#2c2a25;--wn:#fbbf24;--sh:none;color-scheme:dark}}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{font:16px/1.5 system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased;color:var(--fg);background:radial-gradient(90% 60% at 100% 0%,color-mix(in srgb,var(--ac2) 26%,transparent),transparent 70%),var(--bg);display:grid;place-items:center;min-height:100vh;min-height:100svh;margin:0;padding:16px}
form{display:grid;gap:12px;width:100%;max-width:360px;background:var(--card);border:1px solid var(--bd);border-radius:22px;padding:26px 22px;box-shadow:var(--sh)}
.ic{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;font-size:26px;background:linear-gradient(150deg,var(--ac),var(--ac2));box-shadow:0 6px 18px color-mix(in srgb,var(--ac) 35%,transparent);margin-bottom:4px}
h1{font-size:22px;letter-spacing:-.02em;line-height:1.2;margin:0}
p{margin:0 0 4px;color:var(--mut);font-size:14px}
input{width:100%;min-width:0;padding:12px 14px;font:inherit;border:1px solid var(--bd);border-radius:12px;background:var(--card2);color:var(--fg);transition:border-color .15s,box-shadow .15s}
input:focus{outline:0;border-color:var(--ac);box-shadow:0 0 0 3px color-mix(in srgb,var(--ac) 22%,transparent)}
button{margin-top:4px;padding:13px;font:inherit;font-weight:650;border:0;border-radius:12px;color:#fff;background:linear-gradient(150deg,var(--ac),var(--ac2));box-shadow:0 4px 14px color-mix(in srgb,var(--ac) 30%,transparent);cursor:pointer}
button:active{transform:scale(.98)}
i{color:var(--wn);font-style:normal;font-size:14px;padding:10px 12px;border-radius:12px;background:color-mix(in srgb,var(--wn) 12%,transparent)}
small{color:var(--mut);font-size:12px;text-align:center}
.brand{text-align:center;margin-bottom:18px}
.brand b{display:block;font-size:34px;font-weight:800;letter-spacing:-.04em;line-height:1}
.brand em{font-style:normal;background:linear-gradient(120deg,var(--ac),var(--ac2));-webkit-background-clip:text;background-clip:text;color:transparent}
.brand span{font-size:13px;font-weight:600;color:var(--mut)}
main{width:100%;max-width:360px}